CN104411148A - Thermal radiation protection cabinet - Google Patents

Abstract

The embodiment of the invention discloses a thermal radiation protection cabinet. The thermal radiation protection cabinet in the embodiment of the present invention includes an internal cabinet and a radiation-proof structure covering the outside of the cabinet. Vertical airflow channels are formed on both sides of the radiation-proof structure, and the cabinet includes a heat dissipation device arranged on the upper part of the airflow channel. The lower part of the radiation protection structure or the bottom of the radiation protection structure is provided with air inlets, the top is provided with air outlets, and the surroundings are provided with several air outlets from bottom to top. An embodiment of the present invention provides a thermal radiation protection cabinet, which is used to improve heat dissipation effect, reduce heat dissipation power consumption, and be waterproof and dustproof.

Description

A thermal radiation protection cabinet

technical field

The invention relates to a protective cabinet, in particular to a thermal radiation protective cabinet.

Background technique

In industrial production, in order to ensure the reliable operation of equipment, a large number of cabinet packages are used to provide a clean and constant temperature environment for internal equipment. However, in the application site of industrial production, cabinets are often arranged in high heat radiation scenes. Solar radiation, these heat radiation will bring great difficulties to the internal environment control of the cabinet, and more energy needs to be invested to control the internal temperature.

At present, in order to ensure the reliable operation of internal equipment, the following solutions are generally adopted:

Double-layer cabinet structure, the cabinet is arranged in a double-layer structure, the internal space is generally arranged at about 20mm, and insulation materials are pasted, but most of the double-layer structures adopt a closed structure and use insulation materials to isolate the heat source, the cost of the solution is high, and because the cabinet body Most of them adopt metal structure, which has relatively good thermal conductivity. When heat radiation reaches the surface, heat can still be transferred to the inside of the cabinet through heat conduction. It is difficult to eliminate the "cold bridge" of internal heat transfer.

The single-layer cabinet structure is equipped with large temperature control equipment to balance the heat load caused by external heat radiation, but in order to achieve the same temperature control effect, the temperature control equipment configured consumes more energy.

Simple heat insulation structure, with a separate heat insulation board on the outside, but the simple heat insulation structure on the outside can only simply isolate part of the heat radiation, but cannot completely isolate it, and it is dependent on installation, so it is not easy to achieve standardization.

Anti-radiation coatings are used to reflect external thermal radiation, but the effect of reflective coatings is limited, and for scenarios where the external environment changes periodically, in low temperature environments, its own radiation ability is enhanced, which is not conducive to internal heat preservation at low temperatures. In many outdoor applications, anti-radiation coatings become less effective as the surface wears away or dirt accumulates.

To sum up, it can be seen that the current heat insulation protection schemes for cabinets either consume too much power or have poor heat insulation effects, which cannot achieve satisfactory results.

Contents of the invention

The embodiment of the present invention provides a thermal radiation protection cabinet, which improves the heat dissipation effect, reduces the heat dissipation power consumption, and is waterproof and dustproof.

An embodiment of the present invention provides a thermal radiation protection cabinet, which includes an internal cabinet and a radiation protection structure covering the outside of the cabinet. Vertical airflow passages are formed between the four sides of the radiation protection structure and the cabinet. Air inlets are arranged on the lower part of the radiation structure or the bottom of the radiation protection structure, air outlets are arranged on the top, and several air outlets are arranged on the four sides from bottom to top.

Optionally, the air outlets on opposite sides of the radiation protection structure are arranged symmetrically.

Optionally, a shunt baffle is provided at the air outlet, which divides the airflow channel on one side into two parts, so that part of the airflow in the airflow channel is discharged through the left air outlet of the baffle, and the other part continues to float along the right side of the baffle. Lift.

Optionally, the air outlet is an air outlet that opens horizontally at the top of the radiation protection structure or opens at the top of the side.

Optionally, the air inlet adopts a tapered structure in which the cross-sectional area decreases along the upward direction of height.

Optionally, the air inlet is located at the bottom of the radiation protection structure and directly below the airflow channel.

Optionally, a mounting bracket is provided under the cabinet to elevate the cabinet and the radiation protection structure.

Optionally, the cabinet further includes a cooling device arranged on the upper part of the cabinet.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

In the embodiment of the present invention, the chimney principle is used to form a vertical airflow channel between the radiation-proof structure outside the cabinet and the cabinet. The external heat radiation makes the temperature in the airflow channel higher than the temperature outside the airflow channel, so that the inside and outside of the airflow channel form a Due to the temperature difference, the airflow inside the airflow channel is heated up and discharged from the air outlet, and the external low-temperature air enters the radiation protection structure due to suction, and the cold air entering the air inlet at the lower or bottom of the radiation protection structure and the hot air in the airflow channel form an air Convection, so that the heat of the internal heat radiation is transferred from the side air outlet and the top air outlet through air convection, and the temperature of the inner surface of the radiation is lowered to the temperature of the external environment, and the temperature inside the cabinet is kept stable with low energy consumption; at the same time Because the flow of airflow inside the airflow channel will prevent dust from accumulating in the cabinet, due to the low speed of the internal airflow, the dust will fall to the bottom of the cabinet due to gravity after entering the internal channel, which is dustproof and waterproof.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a thermal radiation protection cabinet in an embodiment of the present invention;

Fig. 2 is a schematic diagram of an embodiment of the thermal radiation protection cabinet in the embodiment of the present invention;

Fig. 3 is a schematic diagram of an embodiment of the thermal radiation protection cabinet in the embodiment of the present invention;

Fig. 4 is a schematic diagram of an embodiment of the thermal radiation protection cabinet in the embodiment of the present invention;

Fig. 5 is another schematic cross-sectional view of the thermal radiation protection cabinet in the embodiment of the present invention.

Detailed ways

An embodiment of the present invention provides a thermal radiation protection cabinet, which is used to improve heat dissipation effect, reduce heat dissipation power consumption, and be waterproof and dustproof.

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Referring to Fig. 1, the thermal radiation protection cabinet in the embodiment of the present invention may include:

The internal cabinet 1 and the radiation-proof structure 2 covering the outside of the cabinet, the four sides of the radiation-proof structure 2 and the cabinet 1 form a vertical airflow channel, the lower part of the radiation-proof structure 2 or the radiation-proof The bottom of the structure 2 is provided with an air inlet 5 , the top is provided with an air outlet 3 , and a number of air outlets 4 are arranged around it from bottom to top.

In the embodiment of the present invention, the chimney principle is utilized, and a vertical airflow channel is formed between the radiation-proof structure 2 outside the cabinet 1 and the cabinet 1. The external heat radiation makes the temperature in the airflow channel higher than the temperature outside the airflow channel, making the air flow A temperature difference is formed inside and outside the channel, and the cold air entering the lower or bottom air inlet of the radiation protection structure 2 forms air convection with the hot air in the air flow channel, so that the heat of internal heat radiation is exhausted from the side air outlet 4 and the top through air convection Port 3 is heated by heat exchange, and the temperature of the inner surface of the radiation is lowered to the temperature of the external environment, so as to keep the temperature inside the cabinet stable with low energy consumption. High, after the dust enters the internal channel, it will fall to the bottom of the cabinet due to gravity, which is dustproof and waterproof.

As shown in Figure 2 and Figure 3, the air outlet 3 of the radiation protection structure 2 can be opened at the top, or it can be opened at the top of the side, and when the top of the side is opened, a The baffle prevents dust from entering, which is not limited here.

As shown in Figure 2, the air outlet 4 can be arranged symmetrically on the air outlet on the opposite side of the radiation protection structure 2, further, it can also be arranged symmetrically on the four sides, of course, as shown in Figure 4, Row upon row on the adjacent two sides of the four sides of the radiation protection structure 2, there are high and low levels to set the air outlets 4, the number of the air outlets is determined according to the intensity of heat dissipation required, generally on one side (side) of the radiation protection structure 2 ) to set 1 to 3 air outlets. When the internal heat radiation of the cabinet 1 is also strong, additional air outlets can be provided to increase the heat dissipation speed, which is not limited here.

As shown in Figure 1, there is a shunt baffle at the air outlet 3, which divides the air flow channel on one side into two parts, so that part of the air flow in the air flow channel is discharged through the left air outlet of the baffle, and the other part continues along the right side of the baffle. Buoyancy, so that the temperature of the air in each section of the airflow channel is close, avoiding the high temperature of the air in some parts of the airflow channel, resulting in uneven heat and cold, unable to take away more heat, and shortening the stroke of each section of gas , reduces the resistance, and can also increase the speed of the internal airflow, thereby further increasing the heat transfer.

As shown in Figure 2, the air inlet 5 can be located at the bottom of the radiation protection structure 2, and directly below the airflow channel, and can be a honeycomb-shaped air intake, so that the air intake is uniform and the air convection is stable. It is the air inlet hole provided at the bottom of the radiation protection structure 2, the airflow channel corresponds to the lower part, and the air inlet 5 can also adopt a tapered structure whose cross-sectional area decreases along the height upward direction, which is not limited here.

As shown in Figure 5, a mounting bracket 6 is provided below the cabinet 1 to elevate the cabinet and the radiation protection structure 2, while waterproofing, it also indirectly raises the cold air outlet 5 of the radiation protection structure 2 , to avoid being affected by ground radiation, which is not limited here.

Simultaneously, under normal circumstances, a cooling device is also provided separately in the cabinet 1, such as an air conditioner or a fan, or a heat exchanger. In the upper part, the air is heated in the upper part of the airflow channel to accelerate the convection of the air and improve the heat dissipation speed.

The embodiment of the present invention makes full use of the air density difference brought about by heat radiation to form air flow, and finally achieves to take away the heat radiation before entering the cabinet, and this effect will be enhanced with the increase of external heat radiation. The radiation is weakened, and the scene of low temperature and no heat radiation can also form an air insulation layer to increase the insulation effect.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (8)

1. a heat radiation prevention rack, it is characterized in that, comprise inner rack and the radiation proof structure covering on described rack outside, four limits of described radiation proof structure form vertical gas channel with between described rack, described radiation proof structure surrounding bottom or described radiation proof structural base are provided with air inlet, top is provided with exhaust outlet, and surrounding is provided with some air outlets from the bottom to top.

2. heat radiation prevention rack according to claim 1, is characterized in that, the air outlet on the limit that described radiation proof structure is relative is symmetrical arranged.

3. heat radiation prevention rack according to claim 1 and 2, it is characterized in that, described air outlet place is provided with a shunting catch, and a side gas flow path is divided into two parts, an air-flow part in described gas channel is discharged by air outlet on the left of catch, and another part continues buoyance lift on the right side of catch.

4. heat radiation prevention rack according to claim 1, is characterized in that, described exhaust outlet is the exhaust outlet of described radiation proof structural top horizontal direction opening or side top opening.

5. heat radiation prevention rack according to claim 1, is characterized in that, the tapering type structure that described air inlet adopts sectional area to reduce along height upward direction.

6. heat radiation prevention rack according to claim 1, is characterized in that, described air inlet is positioned at described radiation proof structural base, and is in immediately below described gas channel.

7. heat radiation prevention rack according to claim 1, is characterized in that, is provided with mounting bracket below described rack, to raise described rack and described radiation proof structure.

8. heat radiation prevention rack according to claim 1, is characterized in that, described rack also comprises the heat abstractor being located at described rack top.